On Mon, 8 Jan 2007, Rajat Jain wrote: > Hi list, > > I have a some related queries regarding the Makefile targets for > generating configuration (.config). > > 1) make oldconfig: It reads the existing .config and checks if it > contains the required configuration options to build the kernel. Any > missing options are prompted from the user, and any extra options > are ignored. The result is ofcourse a modified .config. Is this > understanding correct? this is correct. and if you want to automate accepting the default answer for each of those questions, you can run: $ yes '' | make oldconfig if you're feeling confident that this is what you really want. > 2) make defconfig: copies a default configuration file (different > for each architecture / board) into .config. Now where is this > "default configuration file" saved? $ find arch -name defconfig > 3) When we untar a vanila kernel and make menuconfig for the first > time, where does it load the defaults from? Does the distribution / > currently running kernel / the host machine architecture have any > role to play? see above. rday -- Kernelnewbies: Help each other learn about the Linux kernel. Archive: http://mail.nl.linux.org/kernelnewbies/ FAQ: http://kernelnewbies.org/faq/
